Flow controller



FIG. 1 is a rear perspective view of a flow controller according to our design;

FIG. 2 is a reverse perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a bottom view thereof.

Throughout the various figures of the drawings, certain views may not be provided. The omission of a particular view is intended to convey that the element(s) depicted is/are plain and unornamented in that omitted view, that the omitted view is similar to other views, or that the particular ornamental appearance in that view is simply not claimed. 

The ornamental design for a flow controller, as shown and described. 